Abstract

The Olympic iron oxide Cu-Au (IOCG) Province occurs along the eastern margin of the Gawler craton nucleus where oxidized (magnetite-series), A-type granitoid plutons of the 1595-1575 Ma Hiltaba Suite were emplaced into an accreted Paleoproterozoic terrane, and where mafic volcanic rocks of the lower Gawler Range Volcanics are most abundant. This magmatism comprises the central part of a diachronous corridor of bimodal I-, A- and subordinate S-type intrusions that extends across the Gawler and Curnamona cratons, and was emplaced in a distal continental retro-arc setting during amalgamation of the North and South Australia cratons. IOCG mineralisation mostly formed during a short lived episode of NNW-SSE extension that approximately coincided with eruption of the Gawler Range Volcanics (ca. 1595-1590 Ma), but was preceded and followed by more protracted NW-SE to NNW-SSE contraction. The deposits were emplaced along ENE- to NE-trending extensional faults near their intersections with major NNW- to NW-trending faults in the hangingwall of first-order terrane boundary faults, such as the Elizabeth Creek and Pine Point Fault Zones. Area selection guidelines for further discoveries beneath the extensive cover are considered at subprovince, district and deposit scales.
Google map showing geographic bounding box with values North bound -28.0 East bound 138.0 West bound 133.0 South bound -36.0

Product Type/Sub Type

nonGeographicDataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2010-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

70664 Product http://www.ga.gov.au/metadata-gateway/metadata/record/70664/

Keywords

External Publication
Monograph Contribution
economic geology
mineral deposits
mineral exploration
AU-NT
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-28.0
East bound
138.0
West bound
133.0
South bound
-36.0

Lineage

Unknown

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Source Description

Source data not available.

Metadata File Identifier

a05f7892-f85c-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address